From: Lukas Laukamp <lukas@laukamp.me>
To: Avi Kivity <avi@redhat.com>
Cc: kvm@vger.kernel.org
Subject: Re: Secure migration of LVM based guests over WAN
Date: Wed, 17 Oct 2012 12:18:59 +0200 [thread overview]
Message-ID: <507E8613.6060901@laukamp.me> (raw)
In-Reply-To: <507D32A0.8030102@redhat.com>
Am 16.10.2012 12:10, schrieb Avi Kivity:
> On 10/16/2012 11:48 AM, Lukas Laukamp wrote:
>> Am 16.10.2012 11:40, schrieb Avi Kivity:
>>> On 10/16/2012 11:12 AM, Lukas Laukamp wrote:
>>>> Hey all,
>>>>
>>>> I have a question about a solution for migrate LVM based guests directly
>>>> over the network.
>>>>
>>>> So the situation: Two KVM hosts with libvirt, multiple LVM based guests
>>>> Want to do: Migrate a LVM based guest directly to the other host over an
>>>> secure connection
>>>>
>>>> I know that migration is possible when the VM disks are stored on an
>>>> NFS, GFS2 filer/cluster etc.
>>>>
>>>> So would it be possible to do an offline migration directly with netcat
>>>> or something like that?
>>>>
>>> If all you need is offline, you can use scp to copy each volume to the
>>> destination volume. Make sure the guests are shut down when you do that.
>>>
>>> It is also possible to do a live migration, but unless the destination
>>> and source are in the same IP subnet, the guests are going to lose
>>> connectivity.
>>>
>>>
>> Hello Avi,
>>
>> so can I simply copy an logical volume to the path of the volume group
>> with scp?
> Yes. Best to enable compression to avoid sending zero blocks.
>
>> For the live migration theme, it would be no problem when the guests
>> looses connectivity, how could be done a live migration?
>>
> See the -b option to the migrate command.
>
I will read a little bit about the live migration theme.
Best Regards
prev parent reply other threads:[~2012-10-17 10:19 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-16 9:12 Secure migration of LVM based guests over WAN Lukas Laukamp
2012-10-16 9:40 ` Avi Kivity
2012-10-16 9:48 ` Lukas Laukamp
2012-10-16 10:10 ` Avi Kivity
2012-10-17 10:18 ` Lukas Laukamp [this message]
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